Execution failures in notebooks don't lead to failed Sphinx build

[EwoutH]

I'm currently using myst_nb for integrating Jupyter notebooks into Sphinx documentation hosted on Read the Docs. We've encountered an issue where despite execution errors in the notebooks (e.g., CellExecutionError), the Sphinx build process completes successfully without failing.

This behavior is problematic as it allows documentation with failed notebook executions to be published. I would like the Read the Docs build to fail if any notebook encounters an execution error.

Is there an existing configuration option or recommended method to configure myst_nb so that notebook execution errors cause the Sphinx build to fail?

[choldgraf]

I'd check out the execution errors section of the docs to see if this solves it for you!

[EwoutH]

Thanks! Adding both

nb_execution_allow_errors = False
nb_execution_raise_on_error = True

resulted in the intended behavior (the build failing).

It’s appreciated!